How?  Build a laptop that can handle it.  My little 13" Laptop with a 765m (High End) GPU never gets over 85c, and that is while it is overclocked a shit-ton to get 20%+ extra performance.

I really doubt it, give me some benchmark fps and I'll believe you. Take the demanding post 2012 you want for it.

Wow that's still a lot mate.

Well yeah, laptops run hotter but any gaming laptop will be running at low enough temps to play games on. Nobody will buy a laptop that is consistently throttling. If it isn't throttling then performance won't be affected. 

Looking at reviews for the OP's laptop it runs plenty cool enough to game on with no performance losses. Like I said, chip designs for mobile gaming in generally have been using much less power/performance which means much less heat (heat is proportional to power.) 

http://forum.notebookreview.com/sager-clevo-reviews-owners-lounges/765376-sager-np8651-clevo-p650se-gtx-970m-htwingnut-s-review.html

GPU

CPU

The green one is his GPU/CPU combo (not overclocked.) It consistently stays under 60c (GPU) and 80c (CPU) at max load

I have a laptop, i5 2.7 GHz, 8Gb Ram, Nvidia 740m with 2Gb. I can play it fine on medium settings, there´s some drops on the framerate, but works at 30 - 40 most of the time. Have you tried to open the control panel of your Nvidia and include the game there? Sometimes games runs by default with the integrated card (probably a intel 3000 HD or so) and you have to force your nvidia to process the game.

Yep it seems but still, can't believe a laptop is a good thing for pc. Unless you double the price you would have paid for a desktop one.

Plus, it's not precised for a long they tested it ? You rarely play one hour but 2 to 4 hours. And since laptop pieces are all very close alltogether I'm sure the heat raise a lot while playing for more than one hour.

If the temperature is stable for one hour, chances are the laptop's heat dissipation is working how it was intended, and you'll likely not see a difference for 2-4 hours more of playtime. Furthermore, laptop CPU's are designed to throttle at around 100 C as opposed to 92 C or whatever it is these days with desktop CPUs. They are built with higher max temps in mind. This is also true for the laptop GPU. Since the OP likely isn't overclocking, and shouldn't need to in order to start up Dragon Age Inquisition (let alone play it) his temps should be fine. His HDD, Motherboard, CPU Fan, etc will die long before either his CPU or GPU will (assuming good build quality.) And by that point the laptop will be outdated to play games of whatever year that will be. A lot of people buy gaming laptops because they need to consolidate all of their computing needs into one platform. While it is never really recommended over desktop gaming, if somebody needs a mobile computer that can play games they need a mobile computer that can play games, and these laptops are definitely capable of playing games. That was what they were designed for. That is why they are so expensive. 

Won't spend what I earn in a month to verify it, so i'll believe you. =)

I have no issues with the game on medium settings with a 740m (2 GB), an i5 clocked at 2.6 Ghz and 6 GB RAM. Mine is a fairly old, yet reliable Asus laptop and I have to say I was shocked that the game runs so well on it :| Laptop gaming can be amazing if you have the money for it I dont, yet I still manage to get a fairly decent laptop every couple of years and try out the newer PC games

Thanks for all the advice so far. Another quick question to the laptop gamers, specifically those with nvidia cards. On the Nvidia Control Panel I have an option to set my preferred graphics processor for Global Settings. Whenever I set this to High-Performance NVIDIA processor, it changes itself back to default settings when I run a game or any full screen program. Has anyone found a reliable way to set the NVIDIA graphics card as the default graphics when the laptop is plugged into an outlet. Currently what I need to do is go to the program settings and set the preferred graphics for each individual game and even those settings seem to reset back to integrated graphics whenever they feel like it. Maybe I'll try compeltely reformatting the computer since I have been installing and unistalling drivers so much something might have gotten corrupted.